Summary: Describe Methods Of Producing C. And D. C Electricity
Assignment 2 unit 3
Describe methods of producing A.C. and D.C electricity.
There are two type of electric current it is known as direct current (DC). The other one is known as alternating current (AC). However, an electric current can be produce by moving a magnet inside a coil, wire, so the size of this induces current and it is able to increase by moving the magnet faster. This is using a stronger magnet, so increasing the number of the turns, coils. It may be able to increase its area but the dynamo is a type of electricity generator.
Direct current If you flow the current in only one direction it is c known as direct current or DC. The batteries of the solar cells can supply DC electricity, so typical battery can supply about …show more content…
1.5V, so in the diagram above shows an oscilloscope screen displaying the signal from a DC supply.
Alternating current
The current which constantly changes their direction it is known as alternating current or AC.
the main of the electricity it is an AC supply. However, in the UK mains supply can be up to 230V. The frequency of 50Hz (hertz), so this means that it is able to change the direction and back again 50 times in seconds. The diagram which is shown above is oscilloscope screen displaying the signal from AC supply
Use V = IR to predict values in electric circuit investigations.
Potential difference
The potential difference across a component can be calculated using Ohm's Law:
Using the Ohm’s law the potential difference across a component can be calculated.
Potential difference (V) = current (I) x resistance (R)
V = I x R
For example, for I = 25 milliamps (mA) and R = 330 ohms, V = 0.025 x 330 = 8.25 volts Ohm's Law can also be rearranged to identify the current or the resistance:
I = V / R
For example, for V = 9 volts and R = 330 ohms, I = 9 / 330 = 27 mA For example, for V = 9 volts and I = 18 mA, R = 9 / 0.018 = 500 ohms
In a practical you can use an ammeter and a voltmeter to check the values you calculated for a circuit using ohms law
Describe how electricity is transmitted to the home or …show more content…
industry.
Generating the steam at the electricity power plant by the burning off the fossil fuel or at the nuclear or hydroelectric plant.
But then the steam powers a turbine which is able to spins a huge magnet inside a copper wire and the heat gives energy converts to a mechanical energy which is converted to electrical energy in to the generator. Then electricity flows from the power plant through wires to the step up transformer and then the transformer raises the pressure so it can travel long distances and then it raised as high as 756,000 volts.
Electric current then it runs through the power lines to the substation transformer where the pressure is lowered to between 2000 and 13000 volts.
Then the electricity is taken through the lines to a pole transformer and a transformer box if underground and the pressure is lowered again to between 120 240 volts.
Then from this side on the electricity comes into our homes through a service box and then the meter is located which can measure how much electricity we use in our homes and the wires take the electricity around our homes powering the lights and all our other
appliances.
Compare the efficiency and environmental impact of electricity generated by different sources.
Water
Advantages
It is a renewable source of energy without combustion products
Low operating costs
Affective and reliable operation
Disadvantages
Dependence on the climate conditions
High investment cost during a construction
Wind
Advantages
It is also a renewable energy source
Also has a low operating cost
Disadvantages
It has a negative impact to the landscapes which is scaring of animals and birds etc.....
A necessity to build standby capacities due to non-reliability of the production resulting in a negative impact to the end price of the produced electricity
Assess, in qualitative terms, ways to minimise energy losses when transmitting electricity.
Environmental impacts of renewable electricity generation and large scale impacts from the life cycle assignment
The environmental impacts are an inherent part of electricity production and the energy uses and the electricity generated from renewable energy sources has a smaller environmental footprint than power from fossil fuel sources and which is arguably the major impetus which is moving away from the fossil fuel to renewable sources but the life cycle assessment attempts to the estimated the overall energy usage and environmental impact from the energy produced by a given technology by assessing all the life stages of the technology which are for example raw material extraction, refinement, construction and use ..... But the LCA is use to compare the relative impacts of various fossil fuel based and renewable sources of electricity
Assess, in quantitative terms, ways to minimise energy losses either when transmitting electricity or when transforming electricity into other forms for consumer applications.
In the addition to avoiding of the electricity generations, power plants capacity additions and clean energy policies and the programmes can be avoid energy losing during T and D when these resources are located near the electricity consumer and then avoid the electricity consumer and avoided energy losses during T and D which can be estimated by the multiplying the estimated energy and capacity saving from the clean energy during the peak hours simply because line losses are higher at peak times.
Describe methods of producing A.C. and D.C electricity.
There are two type of electric current it is known as direct current (DC). The other one is known as alternating current (AC). However, an electric current can be produce by moving a magnet inside a coil, wire, so the size of this induces current and it is able to increase by moving the magnet faster. This is using a stronger magnet, so increasing the number of the turns, coils. It may be able to increase its area but the dynamo is a type of electricity generator.
Direct current If you flow the current in only one direction it is c known as direct current or DC. The batteries of the solar cells can supply DC electricity, so typical battery can supply about …show more content…
1.5V, so in the diagram above shows an oscilloscope screen displaying the signal from a DC supply.
Alternating current
The current which constantly changes their direction it is known as alternating current or AC.
the main of the electricity it is an AC supply. However, in the UK mains supply can be up to 230V. The frequency of 50Hz (hertz), so this means that it is able to change the direction and back again 50 times in seconds. The diagram which is shown above is oscilloscope screen displaying the signal from AC supply
Use V = IR to predict values in electric circuit investigations.
Potential difference
The potential difference across a component can be calculated using Ohm's Law:
Using the Ohm’s law the potential difference across a component can be calculated.
Potential difference (V) = current (I) x resistance (R)
V = I x R
For example, for I = 25 milliamps (mA) and R = 330 ohms, V = 0.025 x 330 = 8.25 volts Ohm's Law can also be rearranged to identify the current or the resistance:
I = V / R
For example, for V = 9 volts and R = 330 ohms, I = 9 / 330 = 27 mA For example, for V = 9 volts and I = 18 mA, R = 9 / 0.018 = 500 ohms
In a practical you can use an ammeter and a voltmeter to check the values you calculated for a circuit using ohms law
Describe how electricity is transmitted to the home or …show more content…
industry.
Generating the steam at the electricity power plant by the burning off the fossil fuel or at the nuclear or hydroelectric plant.
But then the steam powers a turbine which is able to spins a huge magnet inside a copper wire and the heat gives energy converts to a mechanical energy which is converted to electrical energy in to the generator. Then electricity flows from the power plant through wires to the step up transformer and then the transformer raises the pressure so it can travel long distances and then it raised as high as 756,000 volts.
Electric current then it runs through the power lines to the substation transformer where the pressure is lowered to between 2000 and 13000 volts.
Then the electricity is taken through the lines to a pole transformer and a transformer box if underground and the pressure is lowered again to between 120 240 volts.
Then from this side on the electricity comes into our homes through a service box and then the meter is located which can measure how much electricity we use in our homes and the wires take the electricity around our homes powering the lights and all our other
appliances.
Compare the efficiency and environmental impact of electricity generated by different sources.
Water
Advantages
It is a renewable source of energy without combustion products
Low operating costs
Affective and reliable operation
Disadvantages
Dependence on the climate conditions
High investment cost during a construction
Wind
Advantages
It is also a renewable energy source
Also has a low operating cost
Disadvantages
It has a negative impact to the landscapes which is scaring of animals and birds etc.....
A necessity to build standby capacities due to non-reliability of the production resulting in a negative impact to the end price of the produced electricity
Assess, in qualitative terms, ways to minimise energy losses when transmitting electricity.
Environmental impacts of renewable electricity generation and large scale impacts from the life cycle assignment
The environmental impacts are an inherent part of electricity production and the energy uses and the electricity generated from renewable energy sources has a smaller environmental footprint than power from fossil fuel sources and which is arguably the major impetus which is moving away from the fossil fuel to renewable sources but the life cycle assessment attempts to the estimated the overall energy usage and environmental impact from the energy produced by a given technology by assessing all the life stages of the technology which are for example raw material extraction, refinement, construction and use ..... But the LCA is use to compare the relative impacts of various fossil fuel based and renewable sources of electricity
Assess, in quantitative terms, ways to minimise energy losses either when transmitting electricity or when transforming electricity into other forms for consumer applications.
In the addition to avoiding of the electricity generations, power plants capacity additions and clean energy policies and the programmes can be avoid energy losing during T and D when these resources are located near the electricity consumer and then avoid the electricity consumer and avoided energy losses during T and D which can be estimated by the multiplying the estimated energy and capacity saving from the clean energy during the peak hours simply because line losses are higher at peak times.